Fits 2001-2004 5 Speed Allison 1000-2400 series.
Duramax Diesel Chevrolet, GMC Diesel/Gas Trucks Heavy Duty, Street, Show & Competition
Includes our exclusive Smart Trim/Clutch Control valve assemblies and items to modify the C2 clutch piston for increased capacity and more durability.
The C2 clutch is the weak link in the early 5 Speed Allison
Addresses goes to neutral under load; 3-4 slip; burned C2 or C3 clutches; sticks in one gear; won't move after extended parking; loss of pump prime; smart clutch control valves for increased durability; SHORT-CRISP-SMOOTH-upshifts and kickdowns.
Handles 500 Street Horsepower.
Installation recommendation: Experienced technician
Transmission removal necessary: Yes
For later 6 Speed Allison use the "SK Allison JR"
|Common Distributor Part Numbers:|
|WIT Whatever it Takes||T116169A|
|PTW Portland Transmission Warehouse||ALLISON SK|
|Dacco, MST, D&E, and Dean||K37908|
|OTS Oklahoma Transmission Supply||K37908|
|A & Red's||K19475|
|Summit Racing/Atech Motorsports||TRG-ALLISON-SK|